http://www.ssa.gov/oact/trsum/index.html
你自己读过政府的统计报告吗?去年利息收入100B,税收和支出相比实际是个负数。
本帖于 2012-09-10 20:21:30 时间, 由版主 人在北美版主 编辑
http://www.ssa.gov/oact/trsum/index.html
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